Spray-tank agitator



NOV. 4, E L, O'HARA 4 SPRAY TANK AGITATOR Filed March 8, 1929 INVENTOR Q im M.

ATTORNEY This' invention :relates to spray in A, zle.

"Patente-cl '4, 1,9730

VELWIN L. orrIAnA, onANTIooHjoALIrBNIA sra-AY-TANKAGLTATOR y i Applicatonv` filed fill/Iarlzh4v 1 8,

which asupply'ofsprayingliquid is carried in atank'an'djpumped from theftank and' dis'- charged underrpressure through a spray nozvThe `solid matter in the 'liquid has atendency to ksettle and mustftherefore be stirred orV agitated at intervals to keep such matter in suspension'. One of the majorobject-s of Vmy inventionis to provide an agitating means actuated bythe liquid itself,`in connection with certain very simple parts which causes` A' the agitation to be very effective.V I have also at any time Vit needs cleaning;

The provision of the liqnidl actuatedagi-y .tator'v instead of one offa. mechanically actu ated type, enables meto carry out another.v

object 4of theinvention. Thisfis to' eliminate any pump driving engine on the tank-,and mounty the pump Adirectly 0n the tractor used in hauling the tank so that said pump may be driven. from the engine of the tractor.v This eliminates the additional cost ofa spevWagon'.

' cial'pump engine and also enablesthe apparatus to be sold much cheaper than the pres-4 ent type in which the engine is installed as a necessary unit fwith the pump and Wagonf Also the agitator itself ispof a very simple and inexpensive nature,V `likewise enablingy the cost of. manufacture to be reduced. i

"These objects I accomplish by means -of such structure vand relative arrangement ofv parts yas Will fully appear by a-perusal of the following specification and claims.'

' "ln the drawings similar characters of ref-A erence indicate corresponding parts 41n the several vieWs: Y y n y v y Fig. l 1s a slde elevationrof .a spray Wagon and tractor connected together shovvmgthe tractor operated pump arrangement andthe. piping connections between said pump andV v' u v n Y' i :i @tangent'totliearc o f" rotati'on`andjinoppog` `is an enlarged "cross section ofthe i i tankishovving the 'agita-tor construction n FigQ Fig. isa sectional plan of the tank;

Referring 'no vvi more particularly to the Vcharacters Vof reference on the drawingsfthe numeraljl denotes thetank ofthe usualv construction Iand shape, mounted on va pair of Imaa sellar-nef 345.422. j

its forward lend for` connection to the draw?V bar of` a tractor l f of any desired character.

`.forldriving the pressureV pump 6j of standard character such as iscommonly usedfin .sprayv outitsf,` Thisy pump iszrigidly mounted on the vtractor] at a'ny convenient position fat the Vrear end thereof, land lsothatthe driving pulley of the pump in yline With the pulley 5 V so that thel two .may be connected in f drivarranged for the easv removal of the agitatt'nr Y L v AeXible liosef? -leadsjrtothesuction side of 'theA pump fjrcnnlaA rigid pipe 8 extending un- Vdeithe.connected to the bottom of Y "the-same adjacent its ends. 1 The` pump f dis- Y 5chargesfi'ntoV a pressure'chamber 9 as is usually Ap rovi, l fe`.d1 and from which g a flexible; hose 10, .leadsfft'o'a rigid pipe l1'` secured; on the tank. 'Said pipe atoneendleads to the intake side of api-fessure regulating: valve l2v of common character vvhiclr is mounted on the tank and at'its therfend isconnected to a length of sprayuhose on theouter end of Which-the. .u jsualfvalve controlled'spray gun is mounted. 5

llrnlieine..dischargeside'l @if the' regulating' valve'a pipe 14 leads ralong'. the top yof` the 1 5 ,tankfto adjacent the ;cent er 'ofits. length and p lthen'j'depends to' 'adjacent the'bottomofg the L ftankjasfshoivn in Fig; 2ik horizontal sec# 5 'tion of-V pipe 15j extends transversely fof the 1 tankfrom the lowerv end 'of the pipe 'p14 and y ani upvvjardlyproj ecfinglcapped extension v16 O'nthcpp'ostnd'ofthe-pipe llead'sltdthe topof thetankf An agitator 17 is turnably "mounted vvitliv al verticalt axis onftlie vpipe 1 5 between the vertiCalpipes 1 4 and '16. This Y agitator Vis in` tlie ejforifof: a vdoubleopposed le element of rotarycharacteras'shown ofzzleg'e "-s facinggsubstantially ysitexcliriecsensi; so that' saidiagieforwiutbe l 'rotated jwhenliquid iunderpressure isf forced ghr'ougli thepipes l5 andinto the agir "taten Under the agitator allorizontal false'botv i To enable this to be done the pipe V14 on top Y of the tank has a union connection interposed therein as shown at 22. The provision ofthe capped extension 16 is for the purpose of enabling the agitator to be held in properly centralized relation to thev floor orifice and also aids `Vin enabling the same to be removed.

i The orificed baffle vfloor 19 and the solid .floor `18 form, together with the agitator, what is in effect a centrifugal pump disposed within thetank below'the level of the liquid. This arrangement'causes the liquid to be drawn down through the opening 20'with the rotation of the agitator and discharged from betweenV the bailies from both ends. A very efficient Yagitating and circulating of the liquid and a consequent maintaining of the solid matter in proper suspension in the water is therefore obtained.' AThe pressure regulating valve,as is well known, iskforthe purwhenv the spray nozzles are temporarily shut radial discharge pipes and a hub to which they are secured set on a vertical axis, a bafflefloor disposed above the agitator and terminating yshort of the end-walls of the tank, said floor having an opening concentric with 'the agitator, and means for circulating liquid from the tank through the agitator under pressure.

2. Ina spray tank, a rotary agitating nozzle disposed to be below the level of the liquid in the tank, said nozzle comprising opposed radial discharge pipes and a hub to which they are secured set on a vertical axis, a bafliefloor disposed above the agitator and terminating 'short of the lendwalls of the tank, said floor having an opening concentric withthe agitator, a `flo'orwunder the agitator parallel to the baie-floor, and means for circulating lliquid from the tank through the agitator under pressure.

A In testimony whereof I ailix my signature.

ELI/VIN L. OHARA.

"pose o-f relieving the pressure on the pump i olf and acts to bypass the liquidback to the l tank, since the pump itselfcontinues to operate. In the present Vcase instead of Vsimply Vdiverting the liquid back to the tank asv is commonly done, IV also utilize thisbypassed liquid to actuate the agitator, as will be evil dent.V y The provision of this type of agitator enables thek tractor mounted pump to be used, f

since, as will be seen, the only connections be- V'tween the tractor and the tank are the flexible y intake" and discharge hoses, and no flexible 1 shafting'or other partsfof a like nature are necessary to operate the agitator, as would be .the case if one of a mechanically operated 'type were used. l v

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfills the objects of the invention as set forth herein.

While this 'construction sets Vforthin ydetail `the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as Ado fnot form a departure Vfrom the spirit of the Y Sinvention, as defined by the appended claims.

'I claim as new and useful and desire vto secure I-Iaving thus described my invention what by Letters Patent is:

1. In a spray tank, a'rotaiy agitating nozi zle disposed to be below the level of the liquid in the tank, said nozzle comprising opposed ilo 

